ComAp ECON-4 Reference Manual
ComAp ECON-4 Reference Manual

ComAp ECON-4 Reference Manual

Digital speed governor
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ECON-4
ECON-4 and ECON-4ADV
Digital speed governor
Digital speed governor for gas and diesel engines
ECON4-1.4.0.mhx and ECON4-ADV-1.1.0.mhx
SW version 1.4.0 and 1.1.0, March 2016
Copyright © 2010 ComAp a.s.
Written by Aleš Procházka, Miroslav Dvořák, Jiří
Schiller
Prague, Czech Republic
Reference guide
ComAp, a.s.
Kundratka 2359/17, 180 00 Praha 8, Czech Republic
Tel: +420 246 012 111, Fax: +420 2 66316647
E-mail: info@comap.cz, www.comap.cz

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  • Page 1 SW version 1.4.0 and 1.1.0, March 2016 Reference guide ComAp, a.s. Copyright © 2010 ComAp a.s. Kundratka 2359/17, 180 00 Praha 8, Czech Republic Written by Aleš Procházka, Miroslav Dvořák, Jiří Tel: +420 246 012 111, Fax: +420 2 66316647 Schiller E-mail: info@comap.cz, www.comap.cz...
  • Page 2: Table Of Contents

    Analog inputs ............................. 55 Analog outputs ........................... 55 Actuator feedback input ........................55 Speed pick-up inputs ......................... 56 RS232 interface ..........................56 CAN bus interface ..........................56 ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 3: General Guidelines

    (Capital letters) binary inputs and outputs Note: ComAp believes that all information provided herein is correct and reliable and reserves the right to update at any time. ComAp does not assume any responsibility for its use unless otherwise expressly undertaken.
  • Page 4: General Description

    Analog Output in case of actuator with 0-20mA(4-20mA) usage. This actuator can control a fuel rack for diesel engines or a mixture throttle valve for gas engines. ECON-4 ADV is advanced version, it is dedicated specially to control of engine in island operations where load steps are expected.
  • Page 5: Getting Started, Installation

    Getting started, installation Wiring overview ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 6: General

    Power supply fusing An eight-amp fuse should be connected in-line with the battery positive terminal to the controller and modules. ECON-4 should never be connected directly to the starting battery. Recommended fuse is slow type – T8A. Grounding Use as short as possible cable to the grounding point on the switchboard Use cable min.
  • Page 7: Binary Inputs

    Binary inputs Binary inputs have internal load resistor 4.4 kΩ connected to the battery plus. Binary inputs are used to control the function of the ECON-4 digital governor. Binary inputs can be read from: • the physical Binary inputs (terminals S4.x), •...
  • Page 8: Speed Pick-Up

    Load gain, Load int, Load der Load control according Speed/Fuel Line Note: There is more Load gain, Load int and Load der values in ECON-4 ADV. Which set will be used depends on actuall power. See description on page 51. S4.3 NOMINAL The Required speed is set to Nominal RPM if the Nominal input is closed, otherwise is the Request set to Idle RPM.
  • Page 9: Analog Inputs

    Analog inputs There are 2 analog inputs available on the ECON-4. Each of them can be configured either as 0-20mA or 0-10V range by jumper setting – see in table below. The analog input function is fixed.
  • Page 10: Note: Collaboration With Econ-4Slave

    Principle of connection Master Slave is shown on next picture. Analog outputs ECON-4 has one analog output configurable to 0-10V or 0-20mA range by jumper setting – see in table below. If configured to 0-20mA range, output works as an active current source. The analog output function is fix (copy of the value sent to ACT output).
  • Page 11: Interface To Actuators

    P6 adjusted to voltage option. Interface to actuators ECON-4 has one interface to actuator. The interface has a bipolar PWM output in bridge configuration and position feedback input. It is recommended to connect PWM output by a twisted cable and connect feedback input by a shielded cable.
  • Page 12 BRIDGE. For Heinzmann actuators, Jumper P21 – supply of the position feedback must be set to option 0-10V. For Woodward and GAC actuators this jumper must be set to position 0- ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 13: Can Bus Connection

    CAN bus connection ECON-4 is equipped by CAN communication line. CAN bus terminals are electrically isolated from any other terminals. Hint: Following ECON-4 CAN setting is necessary to communicate with InteliSys NT: - CAN mode (Object number 10338) = 1 sets ComAp protocol...
  • Page 14: Terminals And Dimensions

    Terminals and dimensions ECON-4 Dimensions and terminals [mm] ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 15 AOUT switch between current and voltage analogue output Current: link the 2 pins from right side Voltage: link the 2 pins from left side 120 Ohm resistor for CAN line termination Boot Reset ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 16 Voltage: link the 2 pins from the right side AIN 2 switch between current and voltage Current: link the 2 pins from the left side Voltage: link the 2 pins from the right side ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 17 ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 18: Quick Start - How To Set Econ4 And Controller

    Quick start – how to set ECON4 and controller The following description should help you to quick adjust the ECON-4 speed governor. The ECON-4 can be found in different modes used for control of module and engine. Basically any input signal of ECON4 can be supplied either using wired signal or using data from CAN1 line.
  • Page 19 In case of BINary control, the ECON-4 is fully controlled via binary inputs – terminals S4.3 – S4.8.(except CB control). The input S4.6 is the ON/OFF signal to ECON-4, in case it is not active, speed governor will not open the throttle. In case it is deactivated during engine running, throttle is immediately closed.
  • Page 20 Speed request set to DATA mode In case of DATA control almost all the data can be sent from ComAp IGS-NT controllers to ECON-4 via CAN1 line. The only binary input RUN/STOP – S4.6 must be activated physically as well. To use the DATA mode, adjust the IGS-NT inputs/outputs in the following way: a.
  • Page 21 ECON4 to controller, in our configuration it is named from controllers point of view, so inputs) AIN1 – Engine RPM The engine RPM can be sent from ECON-4 into the IS-NT via CAN line as well. Configure the AIN1 in the following way: Function – RPM pick-up Sensor –...
  • Page 22 ECON-4 is equipped with the Load anticipation function to react as quickly as possible to the sudden changes of the engine power. For this function ECON-4 needs information about power and in case of DATA mode this can be sent to ECON-4 via CAN. Adjust the AOUT1 in the following way:...
  • Page 23 Idle, Nominal, Overspeed RPM: Engine RPM: Idle RPM, Nominal RPM, Overspeed. WARNING: Please, take in account, there are several setpoints of ECON-4, which are not accessible via IGS-NT control unit in case of DATA mode. These parameters are crucial for ECON-4 and used Actuator adjustment and so these are accessible via ECON-4 connection ONLY.
  • Page 24: Typical Configuration Of Econ4 - Can1 Communication And Physical Wiring Of Breaker`s Feedbacks

    Typical configuration of ECON4 – CAN1 communication and physical wiring of Breaker`s feedbacks Wiring ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 25 Speed request set to DATA mode There is DATA control used, so almost all the data are sent from ComAp IGS-NT controllers to ECON- 4 via CAN1 line. The only binary input RUN/STOP – S4.6 must be activated physically as well. To use the DATA mode, adjust the IGS-NT inputs/outputs in the following way: a.
  • Page 26 ECON4 to controller, in our configuration it is named from controllers point of view, so inputs) AIN1 – Engine RPM The engine RPM can be sent from ECON-4 into the IS-NT via CAN line as well. Configure the AIN1 in the following way: Function – RPM pick-up Sensor –...
  • Page 27 ECON-4 is equipped with the Load anticipation function to react as quickly as possible to the sudden changes of the engine power. For this function ECON-4 needs information about power and in case of DATA mode this can be sent to ECON-4 via CAN. Adjust the AOUT1 in the following way:...
  • Page 28: Data

    Run/Stop Droop The physical RUN/STOP – S5.6 binary input must be closed in any type of control to run ECON-4 i.e. in “DATA mode” together with data command BO4 Run/Stop to enable speed control function (unblock the actuator from 0% position).
  • Page 29: Econ Adjustment For Various Types Of Actuators

    RPM pick-up; (RPM value source for IS-NT) Misfiring Amplitude* No RPM pickup is needed in IS-NT. Configure IS-NT – I /O – ECON-4– AIN1 Engine RPM for Function = RPM pick-up Sensor = Electronic * Misfiring evaluation from ECON-4 is not implemented in version 1.0...
  • Page 30 750mA. In case the maximum allowable actuator current is 250mA, then this is 33.3% of maximum ECON-4 current. Adjust Act Cur 0% to 0% and Act Cur 100% to 34% (250mA from 750mA). By this the output is scaled from 0 to 250 mA.
  • Page 31 2,5 Ohms and power supply is 24V, then maximum ECON-4 current is: 24/2.5 = 9,6A but ECON max allowable current is 8 Amps!! So the output must be limited. This means 100% of ECON theoretical current is 9,6A. In case the maximum allowable actuator current is 5A, then this is 52% of maximum ECON-4 theoretical current.
  • Page 32 Connect the actuator to ECON-4, outputs ACT+ ACT- (take care about polarity!!) J. Adjust ECON-4 parameter: Main PID: ECON-4 mode to MANUAL and run WinScope recording with values: Gas Dose and Act1 Fdbck in range 0.0 – 100.0%. K. When recording is active, change parameter: Main PID: Act position from 0 to 10, 20, 30, ..
  • Page 33: Getting Started, Programming

    Getting started, programming Connection to ECON-4 Connect RS232 cable and start WinScope software. Click on the Connection, Open Connection and choose Direct connection type, EmCon5, ECON-4, INCON Controller type, choose the right COM port and press O.K. button. Setpoints adjustment: Click on the icon Setpoints to open the Setpoints groups.
  • Page 34: Econ-4 Firmware Update

    Choose the right COM port number and press “Start” button. Hint: To be able to program ECON-4 using the FlashProg, you must be disconnected with the WinScope or InteliMonitor from ECON-4. (There can be always only one active connection to ECON-4 through com port) ECON-4, SW version 1.4 rev.1, ©ComAp –...
  • Page 35: Getting Started, Detailed Function Description

    Block schematics – speed governor Speed governor function in Idle or local load mode ECON-4 compares the Reference and Actual speeds of the engine and calculates the Regulation error. The Actual speed is measured from the period of the signal generated by the magnetic pickup sensing gears of the flywheel.
  • Page 36 SGOoffsetRamp. Time in Speed request offset is decreased according ramp, which is set in setpoint this setpoint is time needed to change Speed request offset from 10V to 0V. ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 37 Dose Value (throttle position) goes to value in setpoint Engine RPM: PreOverSpReduct – can be set to Idle Fuel or Close. This feature was added to prevent overspeed when Load is removed – typically switch off large load in island operation. ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 38: Setpoints

    1 RPM Range: 0 – 2500 RPM Overspeed [RPM] Maximum acceptable speed of the engine. If the actual engine speed is higher, ECON-4 immediately closes the actuator. Normal function is restored after detection of zero engine speed. Step: 1 RPM Range: 0 –...
  • Page 39 CAN bus Hint: The setpoint Speed request defines also source of binary inputs, see Table Speed request = BIN Speed request = ANA Speed request = DATA ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 40: Engine Start

    1-50% Engine Start ECON-4 activates the start sequence if it detects non-zero engine speed and if input RUN is active. Actuator is set to position InitStart dose. Actuator then gradually increases fuel dose till the engine start or till it reaches MaxStart dose. The speed of fuel ramp is defined by setpoint Fuel ramp time.
  • Page 41 Step: Range: 1 – 100 s When the engine speed rises above Starting RPM, ECON-4 activates PID speed regulation loop. The Speed reference rises from Starting RPM to Idle RPM with speed ramp defined by setpoint RPM StartRamp. ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft...
  • Page 42: Main Pid

    0 – Idle RPM Hint: ECON-4 can work only if Starting RPM < Idle RPM < Nominal RPM. If this condition is not met, ECON- 4 activates bit Invalid setpoints in Transmit PDO 1, see description of CAN protocol. It is not possible to run the engine if the bit Invalid setpoint is signalized.
  • Page 43 Droop of speed governor. The governor lovers the speed reference by Droop percent of the Nominal RPM over the range from zero to MaxFuel. Step: 0.1 % Range: 0.0 – 100.0 % ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 44 Load anticip Governor is equipped by load anticipation feedback, which helps to keep stable speed in case of fast load changes. In the case of load jump forces the ECON-4 governor output (Actuator lever) by jump according to Load anticip setting.
  • Page 45 ECON-4 must be in AUTO for normal operation. Mode MAN can be used during installation to check the function of the actuator and linkage. If ECON-4 is in MAN mode, it sets the actuator to position Act position. It can be switched to MAN mode only any time even engine is running. This allows measurement of transition curve to calculate PID parameters.
  • Page 46: Analog Sensors

    Act position Adjusts the actuator position in the Econ-4 Mode = MAN. Step: 0.1 % Range: 0.0 – 100.0 % PWM rate [Hz] Frequency of the PWM signal sent to ACT+ and ACT- outputs. Step Range 600 – 10 000 Hz For Heinzmann actuators adjust the PWM rate to 6000 Hz.
  • Page 47 Fdb 0 pos Feedback fully closed position voltage. Connect the position feedback to the ECON-4 terminals. Keep the actuator lever in fully closed position and measure a dc voltage between the terminals S2.1 and S2.3.
  • Page 48: Acttype 1, 2, 3, 4

    Fdb1 0 pos – 4,60 V ActType 1, 2, 3, 4 There are four identical groups of setpoints in ECON-4. They are used to setup the output circuits for particular types of actuators and tune the actuator position PID loop.
  • Page 49: Act Type 2 Predefined For Woodward Itb Pwm

    Fdb 0 pos = 1,76 V Fdb 0 pos = 1,78 V Fdb 100 pos = 3,1 V Fdb 100 pos = 3,1 V Fdb 100 pos = 2,8 V ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 50 Values above can be used just as starting point for tuning and final values can difer. Heinzmann Actuator wiring ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 51: Additional Setpoints For Econ-4 Adv

    There is 5 load bands defined via setpoints Load 1 to Load 5 and different Load gain, Load Int, Load der and load anticip setpoints are active in each band. ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 52 To do that there is derivation on Load and result is added to PID output. There is Limit to avoid jitter based on noise on power signal. If load changes are less then this limit, no derivation is generated. Function works as follows ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 53 (closed position) according setting in setpoint PreOverSpReduct PreOverSpReduct IDLE FUEL/CLOSE Step: Range: IDLE FUEL – CLOSE Value set to output GAS Dose when RPM reaches value in setpoint PreOverSpeed. ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 54 Active power Speed request Command [0.1%] [0.1%] Bit0 Bit1 GCB Feedback Bit2 Nominal/Idle Bit3 Run/Stop Bit4 Droop Bit5 Bit6 Bit7 Bit8 Bit9 Bit10 Bit11 Bit12 Bit13 Bit14 Bit15 ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 55: Technical Data

    Resolution 0 – 10000 Range 0 – 10V; Output resistance < 1Ω 0 – 20mA; Active current source Actuator feedback input Not electrically separated Resolution 10 bits ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...
  • Page 56: Speed Pick-Up Inputs

    3105A Paired EIA Industrial RS485 cable LAPP CABLE (see http://www.lappcable.com) • Unitronic BUS DeviceNet Trunk Cable • Unitronic BUS DeviceNet Drop Cable • Unitronic BUS CAN • Unitronic-FD BUS P CAN UL/CSA ECON-4, SW version 1.4 rev.1, ©ComAp – March 2016 Draft ECON-4 Reference guide.pdf...

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